The Editors of a National Automotive Magazine Recently Studied 30

question 53

Multiple Choice

The editors of a national automotive magazine recently studied 30 different automobiles sold in the United States with the intent of seeing whether they could develop a multiple regression model to explain the variation in highway miles per gallon. A number of different independent variables were collected. The following regression output (with some values missing) was recently presented to the editors by the magazine's analysts: Based on this output and your understanding of multiple regression analysis, which of the following statements is true?

• A) The overall multiple regression model explains a significant portion of the variation in highway mileage when tested at a significance level of 0.05.
• B) Only the two independent variables are statistically significant in the presence of the others when a significance level of 0.05 is used to test.
• C) The standard error of the estimate is a negative value due to the multicollinearity problems in the model.
• D) None of the above is true.

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Definitions:

Great Depression

A severe worldwide economic downturn that lasted through the 1930s, marked by massive unemployment and financial instability.

Workplace Governance

The system by which a workplace is controlled and directed, encompassing policies, processes, and people.

Positive Force

A constructive influence or impact that leads to beneficial changes or outcomes.

Negative Force

An influence or factor that detracts from, hampers, or opposes positive outcomes or progress.